Dear Dish-It

I don't want to make him feel bad but...

So there's this very weird guy who always tries to distract me at school, when I'm trying to work on some assignment. He really got on my nerves and he talks about some really cheesy stuff. I want to tell him to leave me alone, but obviously he won't, and telling him off will hurt him, and I don't want that. I never want to hurt anyone, even some annoying kid off the block. So WHAT THE HECK SHOULD I DO?!